$1:
In the end, a routine protocol re-search of the residence by an RCMP officer brought an end to what was quickly turning into a full scale search operation.
Classy way to say they were making sure that evidence of a criminal act didn't go missing.
SOP in something like this is that the parents and immediate family are *instantly* viewed as potential suspects. The cop then was, indeed, doing what they said but he wasn't looking for the little girl, he was looking for spatter, signs of recent cleaning activities, checking what was in the laundry, and checking sinks and drains for blood traces.